You want to change the log level of a logger in the publish instance. You do not have the development environment installed in publish.
Adobe doesn't recommend that you have the development environment installed on publish.
Use the JMX interface to change log levels of loggers:
- Connect to your JMX interface (default: http://yourpublishIP:8190).
- Click the "name=com.day.cq.engine.services.LogService" link under "com.day.cq.core."
- Use the "setLogLevel" button by specifying the logger and the log level. For example: logger: contentbus.authenticator, level: DEBUG